Single-crystal InSe fiber-based microlaser fabricated by a convenient molten core drawing technique

Litao Xin; Zhaochen Cheng; Xin Zhang; Shengli Pan; Xiuhong Wang; Huiyu He; Pu Wang

doi:10.1117/12.3023734

18 March 2024 Single-crystal InSe fiber-based microlaser fabricated by a convenient molten core drawing technique

Litao Xin, Zhaochen Cheng, Xin Zhang, Shengli Pan, Xiuhong Wang, Huiyu He, Pu Wang

Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 1310462 (2024) https://doi.org/10.1117/12.3023734
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China

Abstract

The layered van der Waals materials γ-InSe showed great potential in integrated photonic devices and microlasers due to the high electron mobility, wide tunable direct bandgap, and high lattice compressibility. However, γ-InSe crystal has weak stability and dissociation tendency in ambient conditions, which hampers its applications. Herein, we proposed a novel method for single-crystal InSe. By thermal stretching combined with photothermal processing, ultralong and layered single-crystal InSe fibers were obtained. The InSe fiber core was effectively restrained and protected, improving the mechanical properties and stability of the device. Moreover, by using a 532 nm nanosecond pulse laser as the pump source, the WGM microlaser operating at 1107.33 nm was obtained. This work provides a convenient approach for van der Waals materials preparation and paves the pathways for the development of light sources for layered van der Waals materials.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Litao Xin, Zhaochen Cheng, Xin Zhang, Shengli Pan, Xiuhong Wang, Huiyu He, and Pu Wang "Single-crystal InSe fiber-based microlaser fabricated by a convenient molten core drawing technique", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 1310462 (18 March 2024); https://doi.org/10.1117/12.3023734

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KEYWORDS

Fiber lasers

Crystals

Cladding

Fabrication

Gas lasers

Structured optical fibers

Scanning electron microscopy

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